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stoowert
Smarty n00b
Joined: 25 Apr 2004
Posts: 1
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 Posted: Sun Apr 25, 2004 11:00 am Post subject: How to find the length of an array? |
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Hi All -
I have a smarty variable that has been assigned to an array in PHP:
| Code: |
$myvar = array( 1, 2, 3, 4 );
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How do I find the length of this array from within my smarty template?
I was hoping for something like
but I can't figure it out.
TIA,
Stew. |
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boots
Administrator
Joined: 16 Apr 2003
Posts: 5611
Location: Toronto, Canada
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| Posted: Sun Apr 25, 2004 11:58 am Post subject: |
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hi,
just use the php count() function as a modifier and prefix it with an @ to tell smarty to pass the input as an array:
{$myarray|@count}
hth |
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NuAlpha
Smarty Regular
Joined: 08 Jan 2004
Posts: 71
Location: US
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| Posted: Mon Jun 14, 2004 1:51 am Post subject: |
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| Can other PHP funtions be accessed from within Smarty templates in a similar manner? |
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boots
Administrator
Joined: 16 Apr 2003
Posts: 5611
Location: Toronto, Canada
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| Posted: Mon Jun 14, 2004 3:01 am Post subject: |
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Yes, as long as smarty's security is not enabled (which is the default) and if it is enabled, then you have to tell Smarty exactly which functions are to be allowed. Just remember that when you use a PHP function as a modifier, everything is passed in sequence as function parameters, starting with the value being modified. Eg:
| Code: | | {$haystack|strstr:$needle} |
Also note that PHP functions can be used directly in {if} clauses:
| Code: | | {if strstr($haystack, $needle)} .. {/if} |
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NuAlpha
Smarty Regular
Joined: 08 Jan 2004
Posts: 71
Location: US
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| Posted: Mon Jun 14, 2004 3:44 am Post subject: |
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| Where do I tell Smarty which functions to allow? |
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boots
Administrator
Joined: 16 Apr 2003
Posts: 5611
Location: Toronto, Canada
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| Posted: Mon Jun 14, 2004 4:16 am Post subject: |
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[php:1:7b482fbcac]$smarty->security_settings['MODIFIER_FUNCS'] = array('count', 'strstr', ...);[/php:1:7b482fbcac]
Again, this is only used when $smarty->security == true (and 'count' is provided by default)
The manual, of course, has more info: http://smarty.php.net/manual/en/variable.security.settings.php |
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NuAlpha
Smarty Regular
Joined: 08 Jan 2004
Posts: 71
Location: US
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| Posted: Mon Jun 14, 2004 3:00 pm Post subject: |
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Thanks for making my Smarty life a little easier! I was afraid I was going to have to write a custom function for Smarty for each PHP function I wanted to access. 
_________________
Smarty -> v2.6.11
PHP -> v5.2.1 |
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khan2265
Smarty Rookie
Joined: 07 May 2004
Posts: 21
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| Posted: Tue Jul 13, 2004 6:26 pm Post subject: |
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<td width="25%" bgcolor="#C0C0C0" height="30" colspan="{$names|@count}"
this works but, for the colspan I want to do something like
colspan = ("{$names|@count}" + 2 )
but have no idea what the syntax should be
can someone help me |
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messju
Administrator
Joined: 16 Apr 2003
Posts: 3336
Location: Oldenburg, Germany
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| Posted: Tue Jul 13, 2004 6:39 pm Post subject: |
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{math equation="x+2" x=$names|@count}
greetings |
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boots
Administrator
Joined: 16 Apr 2003
Posts: 5611
Location: Toronto, Canada
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| Posted: Tue Jul 13, 2004 6:40 pm Post subject: |
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hi khan2265,
you can not do that inline but you can do it with a temporary assign:
| Code: | {assign var=names_count value=$names|@count}
<td width="25%" bgcolor="#C0C0C0" height="30" colspan="{$names_count+2}" |
Alternatively, if you had a modifier that could do math you could do it inline, but I don't know of any that are currently available. |
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